The HMV 525A was manufactured for His Master's Voice (New Zealand) Ltd by Various in 1952.
5-valve broadcast band radio
Valves (5): 7S7, 7B7, 7C6, 7C5, 7Y4
Intermediate Frequency: 455kc/s
Frequency Bands: 1
Chassis Notes(most schematics can be clicked to download a full size version)
Service information (HMV_-_model_525A_BC_Perth_-_5V_BC_AC_-_1953.pdf) here